<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script>
			let json = {
				'name': "wzy",
				'age' : 20
			}
			for (let var1 in json) {
				console.log(var1,json[var1]);
			}
		</script>
	</body>
</html>